# Help with Simplifying repetitive code

4 views (last 30 days)
Ines Shekhovtsov on 20 Jan 2023
Answered: Kevin Holly on 20 Jan 2023
I am looking for a way to reduce writing repetative code and perhaps use for loops instead. I've been told that using eval is not the best approach when using a for loop to try and simplify the below code. Does anyone have any other suggestions/code snippets on how i can streamline this:
RD_ROI=RD(timeLimits(1):timeLimits(2));
RIC_ROI=RIC(timeLimits(1):timeLimits(2));
RLT_ROI=RLT(timeLimits(1):timeLimits(2));
ROB_ROI=ROB(timeLimits(1):timeLimits(2));
RPEC_ROI=RPEC(timeLimits(1):timeLimits(2));
RPS_ROI=RPS(timeLimits(1):timeLimits(2));
RRA_ROI=RRA(timeLimits(1):timeLimits(2));
RUT_ROI=RUT(timeLimits(1):timeLimits(2));
Basically i'm creating new variables with _ROI that take existing variable and extract a region of interest.

Kevin Holly on 20 Jan 2023
If you have your variables as columns in a table, you could do something like this:
t=table;
t.RIC = rand(14,1);
t.RLT = rand(14,1);
t.ROB = rand(14,1);
t.RPEC = rand(14,1);
t.RPS = rand(14,1);
t.RRA = rand(14,1);
t.RUT = rand(14,1);
t
t = 14×7 table
RIC RLT ROB RPEC RPS RRA RUT ________ ________ ________ ________ ________ _______ _______ 0.080879 0.25474 0.48853 0.095937 0.66441 0.58813 0.18798 0.22866 0.053753 0.5189 0.047562 0.66939 0.29408 0.3805 0.2994 0.97273 0.51125 0.80037 0.9816 0.27859 0.68301 0.64157 0.95801 0.31506 0.0599 0.82694 0.28359 0.10281 0.25327 0.65621 0.27398 0.77928 0.054263 0.74135 0.17095 0.99553 0.74094 0.072548 0.50858 0.23869 0.44027 0.6492 0.92099 0.048788 0.94306 0.1584 0.81534 0.96358 0.39643 0.16671 0.92683 0.012261 0.72819 0.35723 0.61379 0.47284 0.68682 0.57082 0.82924 0.33191 0.43374 0.13102 0.16932 0.94069 0.9905 0.50238 0.25963 0.089702 0.9822 0.483 0.25529 0.54532 0.2677 0.51884 0.3802 0.18224 0.63096 0.030474 0.27753 0.93547 0.3527 0.98646 0.3895 0.35703 0.30422 0.076089 0.97177 0.78907 0.23365 0.86461 0.40572 0.59585 0.068501 0.40167 0.62403 0.80161 0.81885 0.44789
timeLimits(1) = 3;
timeLimits(2) = 10;
ROI=timeLimits(1):timeLimits(2);
t_ROI = t(ROI,:)
t_ROI = 8×7 table
RIC RLT ROB RPEC RPS RRA RUT _______ ________ ________ _______ ________ _______ _______ 0.2994 0.97273 0.51125 0.80037 0.9816 0.27859 0.68301 0.64157 0.95801 0.31506 0.0599 0.82694 0.28359 0.10281 0.25327 0.65621 0.27398 0.77928 0.054263 0.74135 0.17095 0.99553 0.74094 0.072548 0.50858 0.23869 0.44027 0.6492 0.92099 0.048788 0.94306 0.1584 0.81534 0.96358 0.39643 0.16671 0.92683 0.012261 0.72819 0.35723 0.61379 0.47284 0.68682 0.57082 0.82924 0.33191 0.43374 0.13102 0.16932 0.94069 0.9905 0.50238 0.25963 0.089702 0.9822 0.483

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